Title :
A 250 watt CW helix with vapor-phase cooling for use in community antenna television systems at 18 GHz
Author :
Hansen, J.W. ; King, L.T.
Abstract :
Development of a long-life 250-watt high reliability TWT for community antenna television systems is described. The system is amplitude modulated with carrier frequencies in the 18 GHz region. The nature of the modulation employed places stringent requirements on the intermodulation and spurious modulation in the TWT. Design details are described which permit operation with both intermodulation and spurious modulation at 50 dB below the 0.5 watt carriers.
Keywords :
Aircraft; Amplitude modulation; Cathodes; Electron beams; Frequency modulation; Helical antennas; Magnetic fields; Solenoids; Space cooling; TV;
Conference_Titel :
Electron Devices Meeting, 1967 International
DOI :
10.1109/IEDM.1967.187868
